Suction roll



G: b. KILBERRYK Aug. 25, 1.925;

- SUCTION ROLL Filed March 15', 1924 3 Sheets-Sheet i gill/14119 I g ATTORNEY Aug. 25, 1925.

G. pQK LB RRY SUCTION ROLL Filed Match 15. "3 z VINIKQNTOR ATTORNEY Geog; 1'.

Patented Aug. 25, 1925.

UNITED STATES PATENT OFFICE. i

GEORGE D. KILBERRY, OF DOWNINGTOWN, PENNSYLVANIA.

SUCTION RO'LL.

Application filed March 15, 1924. Serial No. 699,421

To aZZwhom it may concern: 7

Be it known that I, GEORGE D. K1LBERRY, a citizen of theUnited States, and a resident of Downingtown, county of Chester, and State of Pennsylvania, United .States of America, have invented certain .new and j erly supporting the rolls and maintainin the rolls and the suction boxes containe therein in proper alinement. Suction rolls arev often driven at high rates of speed and at such speeds the bearings often give way and must be frequently renewed.- This, of

' course, is expensive not only on account of the labor and material expense involved but also on account of the fact that the roll is out of commission during this repairing or renewing of bearings. 1

This invention has for its salient object to provide a suction roll so constructed and so supported that the suction box in the roll will be at all times properly supported and properly alined.

Another object of the invention is .to so support a suction box in the roll that the box will operate effectively to extract moisture or water from the lap and will not get out of alinement withrespect to the roll axis.

Another object-of the invention is to so support the suction rolls that the peripheral speed of the roll journals in the bearings will not be excessive and will not be so great as to cause the bearings to wear rapidly and break down. Another object of the invention is to so supportsuction rolls of the type described that the rolls can be driven directly without the necessity of a complicated gear drive.

Further objects of the invention will appear from the following specification taken in connection with the drawings, which form a art of this application, and in which.

ig. 1 is a longitudinal sectional elevation, illustrating the construction of a suction roll embodying the invention;

very heavy and expensive in construction. and difilculty. has been encountered 1n prop-v Fig. 2 is an enlarged sectional elevation taken substantially on line 22 of Fig. 1.

F ig. .3 is an enlarged sectional elevation taken substantially on line 33 of Fig. 1.

.Fig. 4 is an enlarged sectional elevation taken substantially on line 44 of Fig. 1.

Fig.5 is an elevational View taken on line 5-5 of Fig. 1'.

Fig. 6 is an enlarged sectional elevation partly broken away taken on line 66 of Fig. 1. A

Fig. 7 is a longitudinal sectional elevation similar to Fig. 1 but showing another embodiment of the invention.

Fig. 8 is an enlarged sectional elevation talaen substantially on line 88 of Fig. 7, an l Fig. 9 is a sectional elevation taken on line 9-9 of Fig. 7 and showing the means for adjusting the suction box.

The invention briefly" described consists of a suction roll structure comprising a perforated shell having heads secured to the ends thereof and hollow journals carried by said heads. These hollow journals are mounted in stationary bearings, that is, bearings in which the outer element. is nonrotatable. A'suction box is mounted within the perforated shell and has secured to its 1 ends trunnions'or journals, at least one of which is hollow, the journals being mounted and supported in the hollow journals of the shells. In the particular embodiment of the invention shown, the. heads at the ends of the shell are provided not only with circular flanges for supporting the shell but are also provided at the inner ends with seats adapted to receive anti-friction bearings. These bearings are interposed between the shell journals or heads and the journals of the suction 'box. The bearings are preferably located as eloseas possible to the suction box soas to directly support it and-reduce defflec'tion to a minimum. The suction box is held -against rotation with the perforated shell. 'By means of this construction, the suction box and perforated shell are always maintained -in. alinement with respect to each other and since the shell journals have a much smaller diameter than the diameter 1 of the shell, 'the rotation of the shell at excessive speeds will not cause undue Wear onv the bearings as the peripheral speed of the journals in the bearings will not be as great as that of the shell. Furthermore, the

' shell. Furthermore, as already pointed out suction roll or 'perforated'shell can be directly driven and does not require a complicated train of gearing. Further details of the invention will appear from the following description.

Referring, first, to the embodiment of the inventionshown in Figs- 1 to 6 inclusive; there illustrated a perforated shell 10 having heads 11 and 12 secured to the ends thereof in any suitable manner as by bolts '13. The heads 11 and 12 have formed thereon or secured -thereto journals 14 and 15 which are mounted in stationary bearings 16 and 17 of any desired construction. it will be'understood that these hearings are carried by the main frame or" support for the machine and are in no way dependent on the suction box or the supporting means therefor.

The shell may be driven in any desired .manner by connecting-the driving element to. one of the journals, preferably the j ourrial-14;

A suction box 25 is mounted in the shell 10 and has'connected to its ends shafts 21 and. 2 2, at least one of these shafts, namely the shaft 22, being hollow; The shafts or journals 21 and 22 extend into the journals 14 and 15 and are supported therein by bearings supplemental to the said bearings 16 and 17. The particular embodiment .of the invention shown, anti-friction bearings 23 are provided, these being interposed be tween the journals 21 'and 22 and suitable seats formed on the heads 11 and 12. These anti-friction bearings may be differently lo cated, but the construction shown has important advantages. The illustrated 0011- struction, with the bearings at the inner ends of the journals, gives a very direct support for the suction box and reduces to a: minimum any tendency for the box to deflect or get -out of coaxial relation with the rotatable the journals 14 and 15 and the bearings 16 and 17 are made relatively small in diameter to reduce the surface speed to a safe amount.

The anti-friction bearings, however, in order to have ample load-carrying capacity must be relatively larger'in diameter. With the peculiar construction shown, I am able to provide anti-friction bearings of any needed or desired diameter without in any Way interfering with or affecting the diameter .of the bearings 16 and 17. I

Preferably the suction box 25 is carried by a casing or drum 20 to which are secured the aforesaid journals '21 and 22. The box and the. casing may be formed integrally as shown in Figs- 1 to 6, or they may be formed separately as will be hereinafter described. With the integral construction partitions 26 and 27 separate the suction box proper from the casing.

The suction box is reinforced by cross mounted in longitudinal channels 3232 formed at th ends of the suction box. The deckle heads are mounted on rods 34, the inner ends of which are threaded into lugs 35 extending upwardly from the end crossv braces 28.. The outer ends of the rods are suitably formed as shown at 36 to receive a tool by means ofwhich thevrods can be rotated to adjust the'deckle heads in thechannels 32 in. which they are mounted. The adjustment of the deckle heads determines the effective length of the slot 31 in the suction box. The heads 11 and 12 of the shell 10 have suitable openings 37 to give access to the ends of the rods 34.

Channels 40 are formed in the suction box at the longitudinal edges of the slot 31 and in these channels are "mounted fillers or packings 41 of any desired material, this material, however. being softer than the ma terial of which the shell 10 is formed; 'Bew cause ofthis fact in-casethe-paokings 41 engage they-inner surface of the-shell the packings willwear and not'the shell ever, in actual practice, these ackings should be as close as possible to an' ;.=not em gage the shell.

The drum 20 arm &5 illustrated in Fig; 1 as s curedto the outer end of the suction r ox journal or shaft 22. This arm, as shownin Fig. 5, can be 4 7'. and suction box formed therein are .held statibnary by eanspf an adjusted at the desired angle by means of adjustable sto s, 46 and,.47 threaded into lugs 48 secure to a standard forthe'fixe bearings.'

An elbow 55 is coupled as shown at 56 .to the outer end of the suction box journal '22 and to this elbow there is secured a con- (part of the supporting 1 duit 57 which leads to a suitable suction pump for exhausting the suction ,box'.

InlFigsi 'I, 8 and 9, thereis. illustrated a slightly modified form of construction in which means isprovided for adjusting the suction box toward or away" from the inner surface of the perforated shell 10. I In this construction, the suction box or shell 20. The suction box in this case is formed separate from the drum 20 and con sists of a longitudinally extending box hav-- ing a downwardly extending elbow 61. A

proper is adjustably mounted inthe drum.

extending portions 69 0 flexible conduit, such as a rubber hose, 62 connects the elbow 61 with the inner end 63 of the. hollow journal or shaft 64 at one end of the drum 20. i

I The suction box is 'adjustably mounted in the drum in the following manner. pair others 65 and 66 support the suction boxand these bars are in turn supported in recesses 67 and 68 formed in inwardly I the drum) The bars rigidly connected together by means ofbrackets7l. I Each bar has secured thereto at spacedintervals, inclined guides 72 and the suction box'i'ests on these guides. The slots in the suction box engagingthe guides are inclined to correspond with the inclination of the guides secured to bars so that as the bars are moved longitudinally, thus moving the guides, the suction box 20 will be raised or lowered asithe case may be.

order to move the bars longitudinally a lever 75 is pivoted at 76 to the drum .20

and has a pin and slot connection v77 78 with one of the brackets 71; The opposite end of t'he lever 75 extends through a slot 79 in the drum 20 and has connected thereto any desired manner as by a rod 80 slidably supported in lugs 81 formed on the outer surface of thedrum'. This rod may be longitudinally adjusted in w the rotation of .a sleeve 82 threaded to the end of the rodand this sleeve may be reached through one-of the openings 37in the head 11 of the per-' forated shell.

This adjustment of the suction box ls'used only when, the box is installed and-at thattime the'box can be moved to the proper position with reference to the perforated shell, When the box has been so adjusted no further adjustment should be necessary.

' From the foregoing description, it'will be seen that the suction roll or perforated shell and suction'box are so mounted, that these two elementswill be effectively supported "and will --always; be maintained in proper 1. ali'nement with respect to each other. Furthermore, the method of supporting the perforated shell greatly sim lifiesthe drive for the shell'since it canbe' riven directly and not through a complicated. train of gears.

Although certain specific embodiments of the invention have been particularly shown and described, it will be understood that the invention .is capable of modification and that changes in the construction and in the arrangement of the various cooperating .parts may be made without departing from the spirit or scope of the invention, as exprsessed in the following claims.

What I claim is:

1. The combinat'on in a suction roll, a

non-rotatable suction box, a rotatable "perforated cylindrical shell surroundingthe suction box,

two concentrically locatedjon'rnals connected with the ends of the shell two non-rotatable main bearings entirely independent of the suction box in which the journals are respectively supported, and supplemental bearings the inner 'ends oi the respective'journals and lclose to the uction box for supportingfthesaid'box' on the said rotatable jour'nalsf 2. The combination i-i'n'ia suctioni-oll, ofa nona'otatable suction: box, 'a frotat able' porforated cylindrical shell surrounding the suction box, two concentrically located,joui'- journals connected: with the ends of th shell, two non-rotatable .main bearings en-l I tirely independent of the suction box, in which the journals are respectively support ed, and anti-friction, bearings at thednn er ends of the respective: journals; and between the said main bearings for supporting the suction box on the said rotatable journals.

4. The combination in a suction roll, of a non-rotatable suction box, a rotatable perforated cylindrical shelljsurrounding the suction box, two, concentrically located journals ofrelatively small diameter con nected with the endsof the shell, two nonrotatal'ile main hearings entirely inde pe nds, ent of the suction box in whit-lithe journals are respectively I supported, anti ifriction bearings of larger outer diameters than the said journals and located at the innerlends thereof for supportingjthe suction box ,on i

the said rotatable journals. .1, r 5. In a suction roll,,the combination of. a

rotatable perforated cylindrical shell, two

similar separate heads at. the ends of the 1V U shell, each comprising a journal concentric with the shell axis, a circular flahgeconnecb.

ed with the shelland-a bearing-seat adja cent the flange, two non-rotatable main hearings in wlnch the JOUIHQlS tlIGJ respectively supported, anti-friction bearings en gaging the said bearing seats, and a non-v,

rotatable suction box inside the shell. and supported by the last said bearings. I

6. Ina suction box, the combination iottwo aligned pairs of ,separa't'e'concentric journals of which the outer arenrotatable.

and the inner arenon-rotatable, two main bearings supportingthe outer journals're- -'.spectively, supplemental bearings interposed jen the outer and inner journals of the v of which'at' least one is hollow, two non-- rotatable main bearings entirely independent of the'suction box in which the-journals are respectively supported, supplemental bearings carried by the journals for supporting'the suction box, and

means extending through the hollow journal for adjusting the suction box angularly on the last said bearings. p I

8. The combination in a suction roll, of a non-rotatable suction box, a rotatable perforated cylindrical shell surrounding the suction box, two concentrically located journals connected with the ends of the shell, 'ofwhich at least one is hollow, two non-rotatable main bearings entirely independent of the suction box in which the journals are respectively supported, supplemental bear-' ings at the inner ends of the respective journals for supporting the suction box, and means extending through the hollow journal connected with the corresponding main bearing for adjusting angularly on the last said bearing.

9. The combination in a'suction roll, of a non-rotatable suction box, rated cylindrical shell surrounding the suction box, two concentrically located journals connected with the ends of the shell, of

which at least one is hollow, two non-rotatable main bearings entirely independentof the suction box'in which the journals arerespectively supported, supplemental bearings carried by the journals for supporting the suction box, means extending through the hollowjournal for adjusting the suction box angularly on the last said bearings, and

means engaging the other tating the cylindrical shell.

10. The combination in a suction roll, of a rotatable perforated cylindrical shell, two concentrically located journals connected with the ends of the shell, two non-rotatable main bearings in which the journals are rejournal for ro- 'spectively supported, a non-rotatable suction box inside the shell, and entirely closed except where exposed to the shell, supplemental bearings carried by the journals for supporting the suction box, and sealing means carried by the suction box and extending along both sides and both ends thereof in operative relation with the rotatable shell.

11. ,The combination in a suction roll, of a rotatable perforated cylindrical shell, two concentrically located journals connected the suction box a rotatable perfo-.

. with the ends of the shell, two non-rotatable main hearings in which the journals are respectively supported, a non-rotatable suction box inside the shell and entirely closed except Where exposed to the shell, supplemental bearings carried by the journals for supporting the suction box, sealing means carried by the suction box and extending along both sides thereof in operative relation with the rotatable shell, and deckle heads carried'at the ends of the suction box and longitudinally adjustable therealong.

12. The combination in a suction roll, of a rotatable perforated cylindrical shell, two concentrically located journals connected with the ends of the shell, two non-rotatable main bearingsin which the journals are respectively supported, a non-rotatable suction box inside the shell and entirely closed except where exposed to the shell, supplemental bearings carried. by the'journals for supporting the suction box, sealing means 4 carried by the suction box and extending along both sides and both ends thereof in operative relation with the rotatable shell, andmeans located between the main bearings for adjusting the deckle heads.

13; The combination in a suction roll, of a I rotatable perforated cylindrical shell, two

concentrically located journals connectedthe suction box radially withfrespect to the last said bearin s.

14. The combination-in a suction roll, of a rotatable perforated cylindrical shell, two concentrically located journals connected with the ends of the shell, two non-rotatable main bearings in which the journals are respectively supported, a non-rotatable suction box inside the shell, supplemental bearings carried by the journals for supporting the suction box, and means located entirely between the main bearings for adjusting the suction box radially with respect to the last said bearings.

15. The combination in a suction roll, of a rotatable perforated cylindrical shell, two concentrically located journals connected with the ends of the shell, two non-rotatable main bearings in which the journals are respectively supported, a non-rotatable suction box inside the shell, supplemental bearings carried by the journals for supporting the suction box, and means including longitudinally movable inclined guides for ad jufiing the suction box radially with respect to the last said bearings. 1

16. Thecombination in a suction roll, of a rotatable perforated cylindrical shell, two concentrically located journals connected with the ends of the shell, two non-rotatable main hearings in which the journals are respectively supported, a non-rotatable suction box inside the shell, supplemental bear- 4 ing's carried by the journals for supporting the suetionbox, and means for adjusting the suction box i'adia1lywith respect to the last nected to move" both rods,

A said-bearings, the said adjusting means comr. prising two pairs of longitudinally movable 10 4 I with the guides, and a inclined; guides, operating rods connected pivoted lever com 17.. The combination inJ-"a Quest ran; at

- a-rotatableaperforated cylindrical shel1,-two concentrica y v with the ends'of the 'shell of which at least located journals connected one-is hollow, two, non-rotatable mainbear- 4 ings entirely independent of the suctionbox in which the journals are-respectively supported, sulgplemental bearings carried by the journa for 's'upporting the suction box,

' vmetailns for adjusting the suction box radially W1 i exhaust connection through the :hollow jour-t toth'e lastv said bearings, an

nal, and a 'flexible'p'pe between the said journal andthesuction box.

18. The combination a suction roll, of

plemental' bearings carried by the journals for. supporting thesaid c'asing.

" '19. The combination ln a suction roll, of

a rotatable perforated cylindrical shell, two

concentrically located? journals-connected with the ends of the shell, two non-rotatable 'main bearings in which the journals arerespectively supported, a long narrow suction box located inside the'shell -a large nonrotatable cylindrical casing carrying and partly surrounding the suction box, supplemental bearings carried by the journals for sup rting the said casing, and means for radially adjusting the suction box with respect to the casing.

In witness whereof, I-have hereunto set my hand'this 14th day of March, 1924.

. GEORGE D; KILBERRY. 

